Results 1 to 10 of about 2,282 (146)
Superlubric Graphullerene. [PDF]
Nano LettGraphullerene (GF), an extended quasi-two-dimensional network of C60 molecules, is proposed as a multicontact platform for constructing superlubric interfaces with layered materials. Such interfaces are predicted to present very small and comparable sliding energy corrugation regardless of the identity of the underlying flat layered material surface ...
Ying P, Hod O, Urbakh M.
europepmc +3 more sources
Editorial: Superlubricity across the scales. [PDF]
Front Chem, 2022 Article talks about how while the idea of frictionless surfaces and the associated implications of vanishing energy losses during mechanical motion have been part of science fiction culture, scientists in the real world work toward realizing this ambitious goal that was once thought to be unattainable.
Baykara MZ, Berman D, Rosenkranz A.
europepmc +6 more sources
Superlubric Polycrystalline Graphene Interfaces [PDF]
Nature Communications, 2021 Abstract The effect of corrugated grain boundaries on the frictional properties of extended graphitic contacts incorporating a polycrystalline surface are investigated. The friction is found to be dominated by shear induced buckling and unbuckling of corrugated grain boundary dislocations, leading to a nonmonotonic behavior of friction with ...
Xiang Gao +3 more
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Rotational Instability in Superlubric Joints [PDF]
Physical Review Letters, 2019 Surface and interfacial energies play important roles in a number of instability phenomena in liquids and soft matters, but are rare to play a similar role in solids. Here we report a new type of mechanical instabilities that are controlled by surface and interfacial energies and are valid for a large class of materials, in particular two-dimensional ...
Cangyu, Qu +3 more
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Physical Review Letters, 2004 Using a home-built frictional force microscope that is able to detect forces in three dimensions with a lateral force resolution down to 15 pN, we have studied the energy dissipation between a tungsten tip sliding over a graphite surface in dry contact.
Dienwiebel, M. +5 more
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Contacts With Negative Work of “Adhesion” and Superlubricity [PDF]
, 2020 Van der Waals forces between solids in vacuum are always attractive and are considered as the main source of adhesion. However, in the presence of an intermediate medium, they can also be repelling (Dzyaloshinskii et al., 1961) which means that the “work
Popov, Valentin L.
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Superlubricity mechanism of diamond-like carbon with glycerol. Coupling of experimental and simulation studies [PDF]
, 2007 We report a unique tribological system that produces superlubricity under boundary lubrication conditions with extremely little wear. This system is a thin coating of hydrogen-free amorphous Diamond-Like-Carbon (denoted as ta-C) at 353 K in a ta-C/ta-C ...
De Barros Bouchet, M. I. +8 more
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Role of surface roughness in superlubricity [PDF]
, 2006 We study the sliding of elastic solids in adhesive contact with flat and rough interfaces. We consider the dependence of the sliding friction on the elastic modulus of the solids.
Persson, Bo N. J. +2 more
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Molecular dynamics of cleavage and flake formation during the interaction of a graphite surface with a rigid nanoasperity [PDF]
, 2009 Computer experiments concerning interactions between a graphite surface and the rigid pyramidal nanoasperity of a friction force microscope tip when it is brought close to and retracted from the graphitic sample are presented.
Khomenko, Oleksii Vitaliiovych +3 more
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Superlubricity in Layered Nanostructures [PDF]
, 2014 Interaction between two surfaces in relative motion can give rise to energy dissipation and hence sliding friction. A significant portion of the energy is dissipated through the creation of non-equilibrium phonons. Recent advances in material synthesis have made the production of specific single layer honeycomb structures and their multilayer phases ...
Cahangirov, S., Ciraci, S.
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